Mrs. Margaret R. (Laughlin) Hackett of Derry, New Hampshire died Saturday July 31, 2004 in Parkland Medical Center in Derry. She was 81. Born in Newton, a daughter of the late Thomas J. and Delia A. (Burke) Laughlin, she was a lifelong resident of Nonantum and West Newton. She was an inspector for many years for Omni Spectra in Waltham and Ucinite in Newton. She was the wife of the late Robert Hackett. She is survived by her children, Donna M. Tejeiro of Tewksbury, Margaret A. Beckler of Watertown, Robert E. Hackett of Derry, NH, Edward J. Hackett of Waltham and James T. Hackett of Watertown and nine grandchildren. Private funeral services were held. Memorial donations may be made to the American Cancer Society, 30 Speen Street, Framingham, MA 01701 or to Newton-Wellesley Hospital, Department of Oncology, 2014 Washington Street, Newton, MA 02458.